Cool Cosmos
- http://coolcosmos.ipac.caltech.edu/
- Offers lessons and activities for infrared light. Also, includes has online tutorials, games and graphic galleries that related to this topic.
Polarized Light
- http://www.polarization.com/
- Fascinating facts about polarized light, from rainbows to beetles, from Viking navigation to LCD displays. Myths and truth about polarized sunglasses. Also a shop with polarized-only items.
WebTOP
- http://webtop.msstate.edu/
- A 3D interactive computer graphics system that instructors can use to help teach optics, and that students can use to simulate and visualize optical phenomena to help them learn about optics.